John J Oppenheimer, MD - Medicare Allergy/immunology in Cedar Knolls, NJ

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John J Oppenheimer, MD is a medicare enrolled "Allergy & Immunology - Allergy" physician in Cedar Knolls, New Jersey. He went to Temple University School Of Medicine and graduated in 1986 and has 38 years of diverse experience with area of expertise as Allergy/immunology. He is a member of the group practice Practice Associates Medical Group and his current practice location is 8 Saddle Rd, First Floor, Cedar Knolls, New Jersey. You can reach out to his office (for appointments etc.) via phone at (908) 934-0555.

John J Oppenheimer is licensed to practice in New Jersey (license number 25MA05056200) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1639170871.

Contact Information

John J Oppenheimer, MD
8 Saddle Rd, First Floor,
Cedar Knolls, NJ 07927-1902
(908) 934-0555
(973) 540-0472

Map and Direction




Physician's Profile

Full NameJohn J Oppenheimer
GenderMale
SpecialityAllergy/immunology
Experience38 Years
Location8 Saddle Rd, Cedar Knolls, New Jersey
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John J Oppenheimer attended and graduated from Temple University School Of Medicine in 1986
  NPI Data:
  • NPI Number: 1639170871
  • Provider Enumeration Date: 08/10/2005
  • Last Update Date: 05/16/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 7719978022
  • Enrollment ID: I20100311000475

Medical Identifiers

Medical identifiers for John J Oppenheimer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639170871NPI-NPPES
30002942OtherNJRAILROAD MEDICARE
222233003OtherNJHORIZON BC
IS245OtherNJOXFORD INS.
222233003019OtherNJCIGNA INS.
67H422OtherNJEMPIRE HEALTH
121677OtherNJCHN INS.
4263616OtherNJAETNA
5534500MedicaidNJ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207KA0200XAllergy & Immunology - Allergy 25MA05056200 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Morristown Medical CenterMorristown, NJHospital
Overlook Medical CenterSummit, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Practice Associates Medical Group58907031771174

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. John J Oppenheimer allows following entities to bill medicare on his behalf.
Entity NamePractice Associates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427016385
PECOS PAC ID: 5890703177
Enrollment ID: O20060330000690

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John J Oppenheimer is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John J Oppenheimer, MD
Po Box 416457,
Boston, MA 02241-6457

Ph: (973) 656-6280		John J Oppenheimer, MD
8 Saddle Rd, First Floor,
Cedar Knolls, NJ 07927-1902

Ph: (908) 934-0555

Reviews and Comments


Allergy & Immunology Doctors in Cedar Knolls, NJ

Donatella B Graffino, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 8 Saddle Rd, First Floor, Cedar Knolls, NJ 07927
Phone: 973-267-9393    Fax: 973-540-0472

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.